Control system of corridor walk replacing device

Abstract

The utility model belongs to the technical field of corridor walk replacing devices, and particularly relates to a control system of a corridor walk replacing device, which comprises a master control CPU (central processing unit), a wireless switch, a manual control switch, an executive component, a sensor and a power module. The wireless switch is in wireless communication with the main control CPU through the wireless transceiver, the manual control switch is connected with the control input end of the main control CPU through a cable, and the wireless switch and the manual control switch are both used for controlling ascending and descending of the corridor walk replacing device; the execution element comprises a servo motor and an electric push rod, the servo motor and the electric push rod are respectively connected with a control output end of the main control CPU, the servo motor provides operation power for the corridor walk replacing device, and the electric push rod provides thrust for opening and closing actions of the pedal; and the sensor is connected with a signal input end of the main control CPU and transmits a sensing signal to the main control CPU. The control system provided by the utility model ensures the operation stability and safety of the corridor walk replacing device.

Description

Technical Field

[0001] This utility model belongs to the technical field of stairwell mobility aids, specifically relating to a control system for a stairwell mobility aid. Background Technology

[0002] With the development of technology and the gradual improvement of people's living standards, many older residential communities that previously lacked elevators have faced difficulties in moving around, making it inconvenient for people with mobility issues to go up and down stairs. Therefore, many families have installed stairwell mobility aids to facilitate this, using the agility of these aids to meet their needs for going up and down stairs. However, to ensure the normal and safe operation of these mobility aids, a control system is needed. But current control systems suffer from complex circuit designs, poor security, and a lack of linkage functionality with adjacent mobility aids in the stairwells. Summary of the Invention

[0003] To address the problems in the existing technology, this utility model proposes a control system for a stairwell mobility aid. The circuit design is simple, ensuring the stability and safety of the stairwell mobility aid's operation.

[0004] To achieve the above objectives, the technical solution adopted is:

[0005] This utility model provides a control system for a stairwell mobility aid, including a main control CPU, a wireless switch, a manual switch, actuators, sensors, and a power module. The wireless switch communicates wirelessly with the main control CPU via a wireless transceiver, and the manual switch is connected to the control input terminal of the main control CPU via a cable. Both the wireless switch and the manual switch are used to control the upward and downward movement of the stairwell mobility aid. The actuators include a servo motor and an electric push rod. The servo motor and the electric push rod are respectively connected to the control output terminal of the main control CPU. The servo motor provides the operating power for the stairwell mobility aid, and the electric push rod provides the thrust for the opening and closing of the pedals. The sensors are connected to the signal input terminal of the main control CPU, and the sensors transmit sensing signals to the main control CPU. The power module supplies power to the entire control system.

[0006] Furthermore, the main control CPU is an 89C51 microcontroller.

[0007] Furthermore, the wireless switch includes a first wireless handrail switch and a second wireless handrail switch, wherein the first wireless handrail switch is used to control the upward movement of the stairwell mobility device, and the second wireless handrail switch is used to control the downward movement of the stairwell mobility device.

[0008] Furthermore, the wireless switch also includes a first wireless wall switch and a second wireless wall switch. The first wireless wall switch is installed on the lower side wall of the track and is used to control the upward movement of the stairwell mobility device. The second wireless wall switch is installed on the upper side wall of the track and is used to control the downward movement of the stairwell mobility device.

[0009] Furthermore, the hand control switch includes a first handrail switch, a second handrail switch, and a pedal switch installed on the handrail of the stairwell mobility aid. The first handrail switch and the second handrail switch are used to control the upward and downward movement of the stairwell mobility aid, respectively; the pedal switch is used to control the opening and closing of the pedal.

[0010] Furthermore, the actuator also includes an alarm light and a lighting light connected to the main control CPU, the alarm light being used for overload, undervoltage, overvoltage and overcurrent alarms.

[0011] Furthermore, the sensor includes a first infrared sensor and a second infrared sensor, which are respectively installed at the front and rear ends of the stairwell mobility device housing to sense whether someone is approaching the device.

[0012] Furthermore, the sensor also includes a first Hall switch, a second Hall switch, and a diffuse reflection sensor. The first Hall switch and the second Hall switch are respectively installed at the bottom of the front and rear ends of the stairwell mobility aid housing, and cooperate with the positioning magnet on the track for positioning. The diffuse reflection sensor is used to sense whether there is an object in the pedal area.

[0013] Furthermore, the power module includes a charger, a sliding charging pad, and a battery, with the charger charging the battery via the sliding charging pad.

[0014] Furthermore, it also includes a voltage converter connected to the battery.

[0015] The beneficial effects achieved by adopting the above technical solution are:

[0016] The control system of this stairwell mobility aid has the following features: When the diffuse reflection sensor detects someone sitting on the pedal, the main control CPU stops receiving signals from the first wireless wall switch, the second wireless wall switch, and adjacent stairwell mobility aids, and transfers control to the first handrail switch, the second handrail switch, the first wireless handrail switch, and the second wireless handrail switch. This prevents accidental operation of the wireless wall switches by others. Furthermore, when the pedal moves up and down without a stop, if the diffuse reflection sensor detects someone in the pedal area during operation, the main control CPU stops the servo motor to avoid pedestrians, preventing the mobility aid from scraping against pedestrians and improving device safety. When the device is in sleep mode, if the first or second infrared sensor detects someone approaching, the mobility aid enters standby mode, thereby reducing system power consumption and saving overall system electricity. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments of this utility model will be briefly described below. The drawings are merely illustrative of some embodiments of this utility model and are not intended to limit the scope of all embodiments of this utility model.

[0018] Figure 1 This is a front structural diagram of the stairwell mobility aid according to an embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of the back structure of the stairwell mobility aid according to an embodiment of the present invention;

[0020] Figure 3 This is a schematic block diagram of the control system of the stairwell mobility aid according to an embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the structure of the stairwell mobility aid with added seat according to an embodiment of the present utility model;

[0022] Figure 5 yes Figure 2 A magnified view of a portion of point A in the middle.

[0023] The numbers in the diagram represent the following meanings:

[0024] 1. Main control CPU;

[0025] 2. Wireless switch, 201. First wireless handrail switch, 202. Second wireless handrail switch, 203. First wireless wall switch, 204. Second wireless wall switch;

[0026] 3. Hand-held switches, 301. First handrail switch, 302. Second handrail switch, 303. Pedal switch;

[0027] 4. Actuating components: 401. Servo motor; 402. Electric linear actuator; 403. Alarm light; 404. Lighting.

[0028] 5. Sensors, 501. First infrared sensor, 502. Second infrared sensor, 503. First Hall switch, 504. Second Hall switch, 505. Diffuse reflection sensor;

[0029] 6. Power module; 601. Charger; 602. Sliding charging pad; 603. Battery; 604. Air switch; 605. Emergency stop switch; 606. Charging connector;

[0030] 7. Wireless transceiver, 8. Positioning magnet, 9. Terminal block, 10. Transceiver plate. Detailed Implementation

[0031] The following description, in conjunction with the accompanying drawings of specific embodiments of the present invention, will provide a clear and complete illustration of exemplary solutions. Unless otherwise defined, the technical or scientific terms used in this invention should have the ordinary meaning understood by one of ordinary skill in the art.

[0032] like Figures 1-3 As shown, the control system of the stairwell mobility aid in this embodiment includes a main control CPU1, a wireless switch 2, a manual switch 3, an actuator 4, a sensor 5, and a power module 6. The wireless switch 2 communicates wirelessly with the main control CPU1 via a wireless transceiver 7. The manual switch 3 is connected to the control input terminal of the main control CPU1 via a cable. Both the wireless switch 2 and the manual switch 3 are used to control the stairwell mobility aid to move up and down along the track. The actuator 4 includes a servo motor 401 and an electric push rod 402. The servo motor 401 and the electric push rod 402 are respectively connected to the control output terminal of the main control CPU1. The servo motor 401 provides the driving power for the stairwell mobility aid. Specifically, the gear at the end of the output shaft of the servo motor 401 meshes with a helical rack on the track, allowing the stairwell mobility aid to only move along the length of the track. The electric push rod 402 provides thrust for the opening and closing of the pedals. The sensor 5 is connected to the signal input terminal of the main control CPU1, and the sensor 5 transmits the sensing signal to the main control CPU1. The power module 6 supplies power to the entire control system.

[0033] Preferably, the main control CPU1 is an 89C51 microcontroller, which receives signals from the wireless switch 2, the manual switch 3 and the sensor 5, and drives the servo motor 401, the electric push rod 402 and other components to achieve coordinated operation between the components.

[0034] The wireless switch 2 includes a first wireless handrail switch 201 and a second wireless handrail switch 202, such as Figure 4As shown, when a seat is added to the stairwell mobility scooter, the first wireless handrail switch 201 and the second wireless handrail switch 202 are respectively fixed to the inner front end of the left and right seat armrests, making it convenient for the user to press and use while seated. The first wireless handrail switch 201 is used to control the upward movement of the stairwell mobility scooter, and the second wireless handrail switch 202 is used to control the downward movement of the stairwell mobility scooter.

[0035] The wireless switch 2 also includes a first wireless wall switch 203 and a second wireless wall switch 204. The first wireless wall switch 203 is installed on the lower side wall of the track and is used to control the upward movement of the stairwell mobility device; the second wireless wall switch 204 is installed on the upper side wall of the track and is used to control the downward movement of the stairwell mobility device. The first wireless wall switch 203 and the second wireless wall switch 204 can be either push-button type or card-swipe type. When using the card-swipe type, an activation circuit is embedded, allowing only authorized users to use it.

[0036] The hand-operated switch 3 includes a first handrail switch 301, a second handrail switch 302, and a pedal switch 303 installed on the handrail of the stairwell mobility aid, making it convenient for users standing on the pedal or sitting on the seat to operate. The first handrail switch 301 and the second handrail switch 302 are used to control the upward and downward movement of the stairwell mobility aid, respectively; the pedal switch 303 is used to control the opening and closing of the pedal.

[0037] In addition to the servo motor 401 and electric push rod 402 mentioned above, the actuator 4 also includes an alarm light 403 and a lighting light 404 connected to the main control CPU1. The lighting light 404 is used for corridor lighting. The alarm light 403 is used when the load is too high, the battery voltage 603 is too high or too low, or the corridor mobility device may not be able to be used normally due to failure to charge properly at the upper or lower end of the track. The alarm light 403 will light up or be accompanied by a buzzer.

[0038] The sensor includes a first infrared sensor 501 and a second infrared sensor 502. The first infrared sensor 501 and the second infrared sensor 502 are respectively installed at the front and rear ends of the corridor mobility device housing, and are used to sense whether someone is approaching the device so as to wake up the components that are in a dormant state.

[0039] Sensor 5 also includes a first Hall switch 503, a second Hall switch 504, and a diffuse reflection sensor 505, such as Figure 5 As shown, the first Hall switch 503 and the second Hall switch 504 are respectively installed at the bottom of the front and rear ends of the stairwell mobility device housing, and cooperate with the positioning magnets 8 at the upper and lower ends of the track for positioning. When the first Hall switch 503 or the second Hall switch 504 moves above the positioning magnet 8, the Hall switch is triggered and sends a signal to the main control CPU1. At this time, the main control CPU1 controls the servo motor 401 to slowly stop running in order to limit the running range of the stairwell mobility device on the track.

[0040] The diffuse reflection sensor 505 is used to detect whether there is an object in the pedal area. When the diffuse reflection sensor 505 detects that someone is sitting on the pedal, the pedal switch 303 is inactive, and the main control CPU1 stops receiving signals from the first wireless wall switch 203, the second wireless wall switch 204, and adjacent stairwell mobility devices. Operational control is then transferred to the first handrail switch 301, the second handrail switch 302, the first wireless handrail switch 201, and the second wireless handrail switch 202. This prevents accidental operation of the wireless wall switches by others. Furthermore, when the pedal is moving up and down without a load, if the diffuse reflection sensor 505 detects someone in the pedal area during operation, the main control CPU1 controls the servo motor 401 to stop to avoid pedestrians, preventing the mobility device from scraping against pedestrians and improving equipment safety.

[0041] Power module 6 includes a charger 601, a sliding charging pad 602, a battery 603, an air switch 604, an emergency stop switch 605, and a charging connector 606. The charger 601 charges the battery 603 via the sliding charging pad 602; Figure 5 As shown, the sliding charging pad 602 includes terminals 9 mounted on the upper and lower ends of the track and a receiving plate 10 mounted on the bottom of the front and rear ends of the stairwell mobility aid housing. When the receiving plate 10 contacts the terminals 9, automatic charging of the battery 603 begins. The charger 601 converts 220V AC power to 48V DC power, which powers the servo motor 401. The air switch 604 determines whether the current of the battery 603 exceeds the rated value; if so, it automatically disconnects. The emergency stop switch 605 allows manual disconnection of the battery 603 power supply when necessary. The charging connector 606 can supply power to the battery 603 in case the sliding charging pad 602 malfunctions.

[0042] It also includes a voltage converter connected to battery 603. The voltage converter uses a 48V to 24V switching power supply and a 48V to 12V switching power supply. The 12V DC power supplies the wireless transceiver 7, and the 24V DC power supplies the alarm light 403 and the lighting light 404, etc.

[0043] The control system can be divided into the following operating conditions.

[0044] In sleep mode: when air switch 604 and emergency stop switch 605 are turned on, the infrared sensor is powered, and other components are not powered; when the stairwell walker is located at the upper or lower end of the track, the collector 10 contacts the terminal 9 and begins to power the battery 603.

[0045] Standby mode: In sleep mode, when the infrared sensor detects someone approaching, it sends a signal to the main control CPU1, and other components enter standby mode. The main control CPU1 controls the charger 601 to stop supplying power to the battery 603, and the light 404 turns on.

[0046] Pedal opening and closing operation: In standby mode and when the diffuse reflection sensor 505 does not detect an object, pressing the pedal switch 303 will activate the electric push rod 402, opening or closing the pedal. The pedal has an anti-pinch function during opening and closing; if the resistance is too high, the electric push rod 402 will automatically stop operating, and restarting the device will restore normal operation.

[0047] Manual operation: In standby mode, continuously pressing the first handrail switch 301, the second handrail switch 302, the first wireless handrail switch 201, or the second wireless handrail switch 202 will cause the main control CPU1 to receive the signal and control the servo motor 401 to rotate forward or reverse. The stairwell mobility scooter will then move up or down the track until the first Hall switch 503 or the second Hall switch 504 encounters the positioning magnet 8. At this point, the main control CPU1 will control the servo motor 401 to stop. If the switch is released during this process, the servo motor 401 will also stop. During continuous pressing of the first handrail switch 301, the second handrail switch 302, the first wireless handrail switch 201, or the second wireless handrail switch 202, the main control CPU1 will receive the signal and send a signal to the adjacent stairwell mobility scooter via the wireless transceiver 7. This will enable linkage with the upper or lower stairwell mobility scooter in a sleep state, causing the upper stairwell mobility scooter in a standby, sleep, or sleep countdown state to move down or the lower stairwell mobility scooter in a sleep state to move up.

[0048] Remote control operation: In standby mode, pressing the first wireless wall switch 203 or the second wireless wall switch 204 sends a signal to the main control CPU1, which then controls the servo motor 401 to rotate forward or reverse. The stairwell mobility scooter moves up or down the track until the first Hall switch 503 or the second Hall switch 504 encounters the positioning magnet 8, at which point the main control CPU1 stops the servo motor 401. If the first wireless wall switch 203 or the second wireless wall switch 204 is pressed again during the up or down movement of the stairwell mobility scooter, the main control CPU1 will stop the servo motor 401.

[0049] Sleep Countdown Mode: When the pedal switch 303, handrail switch, wireless handrail switch, wireless wall switch, and adjacent stairwell walk-up stop sending signals, and the infrared sensor and diffuse reflection sensor 505 also stop sending signals for a certain period of time, the walk-up enters a sleep countdown. Upon completion of the countdown, it enters sleep mode. If the pedal is in the open position when the countdown ends, it will automatically retract. During the countdown, if any one of the pedal switch 303, handrail switch, wireless handrail switch, wireless wall switch, adjacent stairwell walk-up, infrared sensor, or diffuse reflection sensor 505 sends a signal, the countdown ends, and the walk-up re-enters standby mode.

[0050] It should be noted that when one element is described as "connected," "coupled," or "connected" to another element, it can mean that they are directly connected, coupled, or connected. However, it should be understood that there may be intermediate elements between them; that is, it covers both direct and indirect connection positions.

[0051] It should be noted that the use of words such as "one" or "a" does not necessarily indicate a quantity limitation. Words such as "including" or "contains" mean that the element or object preceding the word covers the element or object listed after the word and its equivalents, without excluding other elements or objects.

[0052] It should be noted that terms such as "up," "down," "left," and "right," which indicate orientation or positional relationship, are only used to express relative positional relationship. They are used to facilitate the description of this utility model and do not mean that the device or component referred to must have a specific orientation or be constructed and operated in a specific orientation. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0053] The preferred embodiments for implementing this utility model have been described in detail above. However, it should be understood that these embodiments are merely illustrative and not intended to limit the scope, application, or construction of this utility model in any way. The scope of protection of this utility model is defined by the appended claims and their equivalents. Those skilled in the art can make numerous modifications to the foregoing embodiments under the teachings of this utility model, and all such modifications fall within the scope of protection of this utility model.

Claims

1. A control system for a stairway scooter, characterized in that The control system comprises a main control CPU, a wireless switch, a manual switch, an executing element, a sensor and a power module; the wireless switch communicates with the main control CPU wirelessly through a wireless transceiver; the manual switch is connected with the control input end of the main control CPU through a cable; the wireless switch and the manual switch are used for controlling the upgoing and downgoing of the corridor scooter; the executing element comprises a servo motor and an electric push rod, which are connected with the control output end of the main control CPU respectively; the servo motor provides running power for the corridor scooter; the electric push rod provides thrust for the opening and closing of the pedal; the sensor is connected with the signal input end of the main control CPU; the sensor transmits sensing signals to the main control CPU; the power module supplies power for the whole control system.

2. The control system of a walkway scooter according to claim 1, characterized in that, The main control CPU is a 89C51 single-chip microcomputer.

3. The control system of claim 1, wherein, The wireless switch comprises a first wireless handrail switch and a second wireless handrail switch; the first wireless handrail switch is used for controlling the upgoing of the corridor scooter; the second wireless handrail switch is used for controlling the downgoing of the corridor scooter.

4. The control system of a walkway scooter according to claim 1 or 3, characterized in that, The wireless switch further comprises a first wireless wall switch and a second wireless wall switch; the first wireless wall switch is installed on the side wall surface of the lower end of the track and is used for controlling the upgoing of the corridor scooter; the second wireless wall switch is installed on the side wall surface of the upper end of the track and is used for controlling the downgoing of the corridor scooter.

5. The control system of claim 1, wherein, The manual switch comprises a first handrail switch, a second handrail switch and a pedal switch which are installed on the handrails of the corridor scooter; the first handrail switch and the second handrail switch are used for controlling the upgoing and downgoing of the corridor scooter respectively; the pedal switch is used for controlling the opening and closing of the pedal.

6. The control system of claim 1, wherein, The executing element further comprises an alarm lamp and an illuminating lamp which are connected with the main control CPU; the alarm lamp is used for overload, under-voltage, over-voltage and over-current alarm.

7. The control system of a walkway scooter according to claim 1, characterized in that, The sensor comprises a first infrared sensor and a second infrared sensor; the first infrared sensor and the second infrared sensor are installed on the front end and the rear end of the shell of the corridor scooter respectively and are used for sensing whether a person approaches the equipment.

8. The control system of a walkway scooter according to claim 1 or 7, characterized in that, The sensor further comprises a first Hall switch, a second Hall switch and a diffuse reflection sensor; the first Hall switch and the second Hall switch are installed on the bottom of the front end and the rear end of the shell of the corridor scooter respectively and cooperate with the positioning magnet on the track to position; the diffuse reflection sensor is used for sensing whether there is an object in the pedal area.

9. The control system of a walkway scooter according to claim 1, characterized in that, The power module comprises a charger, a sliding contact type charging sheet and a battery; the charger charges the battery through the sliding contact type charging sheet.

10. The control system of a walkway scooter according to claim 9, characterized in that, The control system further comprises a voltage converter which is connected with the battery.

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